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Altura Endurance Long Sleeve Jersey Jerseys
  • £55.25
  • RRP £85.00
  • Saving you £35

It's those crisp and chilly autumn rides or the first shoots of marginally milder weather in spring where the Endurance Long Sleeve Men's Jersey really makes sense. Body heat generated as you ride is trapped inside by the lightly fleeced inner face, creating insulation against a chill. Speaking of chills, the windproof chest and arm panels prevent the heat-sapping effects of windchill too. And with a DWR (Durable Water Repellent) added to those panels, a light rain shower is no problem either. At the neck, the Polartec™ fleece-lined collar adds an extra level of cosiness while shaped wrist cuffs give a smooth seal against the elements. The semi-fitted cut balances streamlining with comfort and allows easy movement and a silicone gripper keeps your jersey in place. For rides stretching into the fading evening light, reflective details ensure you're made more visible to other road users. This really is a truly versatile jersey that can be layered up depending on the conditions.

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Altura Endurance Mistral Jacket Jackets
  • £55.00
  • RRP £100.00
  • Saving you £45

Keeping warmth in and rain out, the Endurance Mistral Jacket makes cycling in inclement weather, if not a pleasure, then certainly more comfortable. The softshell outer feature a DWR (Durable Water Repellent) treatment to protect you from rain showers as well as spray thrown up from damp roads. Inside the jacket, a high-loft fleece lining holds tenaciously to the warmth you generate when cycling. Excellent breathability minimises sweat build up too.  The semi-fitted design and stretch fabrics of the Mistral offer streamlined performance ready for those faster efforts of Spring training. Smooth wrist cuffs and a sculpted neckline combine to keep the elements out and comfort levels up too. You'll also find the three covered rear pockets offer plenty of storage for fuel and ride essentials. Reflective panels also boost visibility as daylight fades. It's a brilliant all-rounder of a road cycling jacket.

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Altura Endurance Bib Short Bib Shorts
  • £90.00
  • RRP £95.00
  • Saving you £5

Having taken on numerous endurance cycling challenges, including the record for cycling around the world, Mark Beaumont brings his wealth of experience to bear with the design of the Endurance Bib Shorts. A carefully chosen mix of fabrics delivers the ideal balance of comfort, muscle support and durability to take on big challenges. Thighs are kept flexible and breathable to make pedalling for long periods of time easier. To the side panels, Scholler abrasion-resistant fabric prevents scratches and scrapes from the road and trailside overgrowth as you head off the beaten track.  Comfort bib straps and a bonded front hem also make for an enjoyable ride whilst the Schoeller ceramic print panels and reflective cuffs offer reassurance and protection during long days on the road. If it is good enough for Mark Beaumont......... Endurance Active Pad Made in Italy by Elastic Interface pad, the Endurance Active Pad provides comfort and support for rides of 8-hours and more. Using 11mm thick, dual-density foam, this pad isn't too bulky but still offers support where you need it most. The minimal stitched construction gives an incredible amount of flexibility and stretch, moving with you as you move and manoeuvre around your bike. A high degree of breathability also boosts comfort, ensuring you remain dry as you build up body heat.

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Altura Endurance Cycling Gloves Gloves
  • £35.00

Using premium Italian fabrics the Endurance Cycling Gloves provide a snug and superbly comfortable fit. The perforations to the back allow your skin to breathe, preventing sweat build-up while excellent flexibility offers easy control of brake and gear levers. Soaking up the bumps and vibrations from the road is an Amara suede palm. Soft, flexible and yet tough, this palm also features a clever design with a 'cut' out area boosting flexibility and giving a more natural feel for the bars. It's also been engineered to lessen pressure and protect the nerves in your hand on longer rides. Inside, a silicone print adds extra grip for added reassurance over rougher roads and trails.  A Scholler fabric panel with abrasion-resistant ceramic print enhances durability while the bonded cuff reduces bulk and boosts comfort. Lastly, finger pull tabs make it easy to peel your gloves off after a two-wheeled adventure.  

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absoluteBLACK Dura-Ace 9000 Bolt Covers
  • £42.99
  • RRP £45.99
  • Saving you £7

Absoluteblack premium bolt covers are designed specifically for Shimano 110/4bcd Dura-Ace 9000 cranks.Simply put, these bolt covers for DuraAce cranks make your crank look even better with AbsoluteBlack or Rotor Oval chainrings. When you switch to Absoluteblack oval rings, you create a small step down at the connection point between crank arms and chainring bolt hole area.These bolt covers fix this making your crank look great again.Weight: 13g

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4iiii Dura Ace 9100 Left-Hand Crank with Precision 2.0 Power Meter
  • £358.99
  • RRP £429.00
  • Saving you £16

Whether you’re a pro or simply training hard, PRECISION powermeters deliver industry-leading accuracy, highly dependable cadence data, 3D powermeter technology capable of measuring tri-axial strain on your crank arm. Designed to be durable and lightweight, compatible with  ANT+ and Bluetooth head units, PRECISION helps you train harder and smarter.PRECISION Ride Ready comes installed on a new Shimano left crank arm (105, Ultegra, or Dura-Ace). These crank arms will fit bottom brackets using the Hollowtech ii interface.Key Features:3D powermeter technology (patent pending) measures tri-axial strain on your crank arm,Accurate, consistent data,Lightweight, compact design,Battery status indicator via 4iiii app,Compatible with ANT+, Bluetooth Smart head units, smartphones, and other 4iiii products,User-friendly app and configurable rider compensation scale factor,Easy setup and maintenance,.Specifications:Weight: 9 grams,Data accuracy: +/- 1% error margin,Battery life: 100+ riding hours on 2032 coin cell battery.

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4iiii Dura Ace 9100 Precision 2.0 Dual Sided Power Meter
  • £799.00
  • RRP £899.00
  • Saving you £11

Ridden by the pros, PRECISION PRO dual-side power meters deliver all the benefits of our left-side model (exceptional accuracy, lightweight design, ANT+ and Bluetooth compatibility, 3D powermeter technology), plus a specific breakdown of left and right wattage. Perfect for those who need specific power output from each crank side, or anyone who simply wants the best power meter on the market.Key Features:3D power meter technology (patent pending) measures tri-axial strain on your crank,Accurate, consistent data,Lightweight, compact design,Battery status indicator via 4iiii app,Compatible with ANT+, Bluetooth Smart head units, smartphones, and other 4iiii products,User-friendly app and configurable rider compensation scale factor,Easy setup and maintenance,Over-the-air upgrade capability for adding new features and updates,.Specifications:Weight: 25 grams (power meter only),Data accuracy: +/- 1% error margin,Battery life: 100+ hours on 2032 coin cell battery,Battery status indicator: Alert at 15% battery power.

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4iiii Dura Ace 9100 PRECISION 3.0 Powermeter - Black, Black
  • £379.99
  • RRP £474.99
  • Saving you £20

4iiii Dura Ace 9100 PRECISION 3.0 PowermeterPerfect for riders who want to track and improve their performance during their training sessions, this high-quality 4iiii powermeter comes factory installed into a Shimano Dura Ace 9100 left-sided crank arm. Providing an ultra-precise +/- 1% accuracy with an impressively light 9g weight, it is kitted out to help you achieve your performance goals and get the best out of every training ride. At 5.5mm high, this Precision 3.0 powermeter is compatible with almost every bike frame on the market. In addition, the indicator light will let you know when your power meter is on, performed a successful zero-offset, and is ready for its battery to be changed. With 800 hours of battery life from its long-lasting coin cell battery, the 4iiii Shimano Dura Ace 9100 PRECISION 3.0 Powermeter is all set for taking your training to the next level.Shimano Dura Ace 9100 Crank ArmThe Shimano Shimano Dura Ace 9100 crank arm offers system engineering at its peak. Each of the components magnifies in the series provides an unparalleled level of performance. Optimising input to maximise output. That's how it achieves supremacy. The choice of the world's best climbers, sprinters, and time trialists, the Dura-Ace crank drops weight while maximising power transfer. Its design and iconic look are adapted for modern-day road racing.Up To 800 Hour Battery LifeWith up to 800 hours of battery life, you won't have to worry about changing your battery for years to come.+/- 1% AccuracyEveryone has a unique pedal stroke. 4iiii's patented 3D strain gauge measures all forces to deliver precision accuracy.9g Weight4iiii has confirmed that it makes the lightest power meter on the market. The brand is committed to helping you get faster, one gram at a time.Features: Accuracy: +/- 1% Battery Life: Up To 800 hours Battery Type: CR2032 Coin Cell Waterproof Rating: IPx7 Cadence Range: 30 - 170 RPM Power Range: 0 - 4,000 W Height: 5.5mm Operating Temperature: 0 To 50 degrees celsius Connectivity: ANT+, Bluetooth Arm Type: Shimano Dura Ace 9100 Single or Pair: Single, left-sided arm Weight: 9gTechnologies: Accuracy in 3D: Not everyone has the perfect pedal stroke. With +/- 1% accuracy, 4iiii is the only crank-based power meter to use 3 strain gauges to measure all forces in your pedal stroke. Ultra Low Profile: With an ultra low profile design, the PRECISION 3 is compatible with more bike frames than ever before. Indicator Light: At a glance, you can now see when your power meter has turned on, performed a successful Zero-offset, or has a low battery. Although, don't expect to see that low battery indicator for a while! Waterproof: Based in the foothills of the Canadian Rockies, we were tired of training tools not designed to work in our tough environment. With an IPX7 waterproof rating you can be assured that your power meter can handle the toughest conditions. ANT+ and Bluetooth: Get the same numbers training inside and outside. The PRECISION 3 Powermeter is both ANT+ and BLE compatible so you can use it on your preferred head unit and favorite indoor training app. 3 Year Warranty: A lot can happen in 3 years. You probably won't need to use it, but it's reassuring to know that all 4iiii Powermeters are backed by an industry leading 3-year warranty.Buy 4iiii Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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4iiii Dura-Ace FC-R9100 Left Arm Power Meter - Black, Black
  • £376.00
  • RRP £429.00
  • Saving you £12

4iiii Dura-Ace FC-R9100 Left Arm Power MeterTake your training to the next level with this Left Arm Power Meter from 4iiii. This meter records your pedal power and wirelessly sends your overall output directly to a compatible device, so you can always stay on top of your performance and perfect your pedal output for race day. Innovative, Onboard Power and Cadence MeterDesigned for use with Shimano Dura-Ace FC-R9100 cranksets, it utilises ANT+ and Bluetooth connectivity to relay your data right to your smartphone or onboard computer, giving precision measurements to within +/-1% to keep you pedalling at your peak. With 100+ hours of battery life and a strong IPX7 waterproof rating, it is an excellent accessory for the performance-focused rider.Features:Accuracy: Measures to within +/-1%Crankset compatibility: Shimano Dura-Ace FC-R9100Wireless Connectivity: ANT+, BluetoothDimensions: 37.7x27.6x7.5mmPower Range: 0-4000wCadence Range: 30-150rpmWaterproof Rating: IPX7, IPX5Battery: CR2032 Lithium-Ion coin cell, 100+ hoursWeight: 8gBuy 4iiii Components from Chain Reaction Cycles, the World's Largest Online Bike Store.

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4iiii Shimano Dura Ace 9100 PRECISION 3.0 Powermeter Power Meter Cranksets
  • £379.99
  • RRP £474.99
  • Saving you £20

This high-quality 4iiii powermeter comes factory installed into a Shimano Dura Ace 9100 left-sided crank arm. Ideal for riders who want to track and improve their performance during their training sessions, this model provides an ultra-precise +/- 1% accuracy with an impressively light 9g weight. As a result, it is kitted out to help you achieve your performance goals and get the best out of every training ride. At 5.5mm high, this Precision 3.0 powermeter is compatible with almost every bike frame on the market. In addition, the indicator light will let you know when your power meter is on, performed a successful zero-offset, and is ready for its battery to be changed. With 800 hours of battery life from its long-lasting coin cell battery, the 4iiii Shimano Dura Ace 9100 PRECISION 3.0 Powermeter is all set for taking your training to the next level. Shimano Dura Ace 9100 Crank Arm The Shimano Shimano Dura Ace 9100 crank arm offers system engineering at its peak. Each of the components magnifies in the series provides an unparalleled level of performance. Optimising input to maximise output. That's how it achieves supremacy. The choice of the world's best climbers, sprinters, and time trialists, the Dura-Ace crank drops weight while maximising power transfer. Its design and iconic look are adapted for modern-day road racing. Up To 800 Hour Battery Life With up to 800 hours of battery life, you won't have to worry about changing your battery for years to come. +/- 1% Accuracy Everyone has a unique pedal stroke. 4iiii's patented 3D strain gauge measures all forces to deliver precision accuracy. 9g Weight 4iiii has confirmed that it makes the lightest power meter on the market. The brand is committed to helping you get faster, one gram at a time. Technologies: Accuracy in 3D: Not everyone has the perfect pedal stroke. With +/- 1% accuracy, 4iiii is the only crank-based power meter to use 3 strain gauges to measure all forces in your pedal stroke. Ultra Low Profile: With an ultra low profile design, the PRECISION 3 is compatible with more bike frames than ever before. Indicator Light: At a glance, you can now see when your power meter has turned on, performed a successful Zero-offset, or has a low battery. Although, don’t expect to see that low battery indicator for a while! Waterproof: Based in the foothills of the Canadian Rockies, we were tired of training tools not designed to work in our tough environment. With an IPX7 waterproof rating you can be assured that your power meter can handle the toughest conditions. ANT+ and Bluetooth: Get the same numbers training inside and outside. The PRECISION 3 Powermeter is both ANT+ and BLE compatible so you can use it on your preferred head unit and favorite indoor training app. 3 Year Warranty: A lot can happen in 3 years. You probably won’t need to use it, but it’s reassuring to know that all 4iiii Powermeters are backed by an industry leading 3-year warranty.

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4iiii Precision Dura-Ace R9100 Power Meter Power Meter Cranksets
  • £359.99
  • RRP £429.00
  • Saving you £16

As the name suggests, this excellent device is the most precise way to keep on top of your riding outputs. This left-arm model is compatible with Shimano Dura-Ace FC-R9100 cranksets, delivering real-time cadence and power data straight to your onboard computer or smartphone via ANT+ and Bluetooth. Weighing only 8g, it gives output readings to within +/-1% accuracy, letting you make the appropriate adjustments in an instant. IPX7 waterproof rated and equipped with 100+ hours of battery life, the 4iiii Dura-Ace Power Meter is an excellent way to keep yourself riding at your very best. Please note: Crankarm only, no accessories included.

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4iiii Precision 3 Power Meter - Dura Ace 9200 - 175mm
  • £495.00

It's no easy feat to improve upon a power meter that was already one of the lightest, cheapest, and most accurate on the market, but the 4iiii Precision 3 has done just that. Regardless of whether you are contesting Iron Man triathlons, stages of the Tour de France, or town-sign sprints during the weekend club run, the Precision 3 offers truly world-class technology, at an affordable price point. SIMPLY CONNECT As you’d expect, the 4iiii Precision 3 is feature packed and easy to install. It incorporates Bluetooth and ANT+ connectivity, so you can connect it to your choice of bike computer or indoor trainer. Pair it with a compatible device, and it'll work with a plethora of indoor training software, including TrainerRoad and Zwift. Installation of the device is as simple as installing any Shimano left-side crank arm. The power meter arrives pre-attached to the Dura Ace 9200 crank arm, all that's left for you to do is install it on your bike, as you would a regular crank arm. Once installed, follow the set-up instructions via the app, available on iOS and Android. With the app you can also update the firmware, check battery status, and calibrate your power meter. LONGER-LASTING BATTERY In the previous iteration, the Precision already boasted a respectable 120-hour battery life. For the latest version, this has been increased to an industry-leading 800 hours. Operated by a simple to replace CR2032 battery, even the most dedicated cyclists will rarely need to replace the battery. Incredibly, despite this increase in battery life, the casing that houses the device is almost half as thick as previously, making it compatible with even more frames. Handily, LED lights have been added to indicate battery life, connectivity, and calibration status. ACCURATE AND RELIABLE A power meter lives and dies by its accuracy and reliability; after all, there is little point in looking at data from a device that can't be trusted. Over the years, 4iiii have established themselves as a reputable player in the industry, and are well regarded for the accuracy and reliability of their devices. As you'd expect, then, the Precision 3 is no different. Offering accuracy of +/-1%, there are few if any competitors on the market claiming anything better, and you can count on this accuracy to remain reliable. What’s more, with a IPX7 water resistance rating, you can ride into the depths of winter assured that your power meter will survive. Product Features: 800-hours battery life LED lights to indicate – on (green), zero offset (blue), and low battery (red) 3D Strain Gauge technology to deliver +/- 1% accuracy Slimmed down design that fits virtually every frame Three-year warranty IPX7 water resistance rating Weighs only nine grams Backwards compatible with current Precision Drive Side Powermeter Active temperate compensation Over the air feature and firmware upgradability Coin cell battery operated (CR2032) Compatible with 3rd party training apps such as Zwift, TrainerRoad, SYSTM, and more Specifications: Accuracy: +/- 1% Battery Type: CR2032 Coin Cell Battery Life: 800 Hours Waterproof Rating: Ipx7 Cadence Range: 30-170 RPM Power Range: 0-4000 Watts Length: 63.79mm Width: 26.42mm Height: 5.5mm Weight: 9g Operating Temperature: 0 to 50°C Storage Temperature: -40 to 60°C Communication Protocols: ANT+, Bluetooth®

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